What the scientists can do - and have done - is unite the in-focus elements of each picture in the series and create anaglyphs that present a three-dimensional view of the outcrop and the terrain of the crater floor.

It's interesting to compare the latter images with Earth's Grand Canyon; see NASA's Visible Earth or this anaglyph (or, if you prefer, this ordinary stereogram) from the Eagle Eye Maps Experiments Page.

These anaglyphs of Nirgal Valles and Maja Valles make it perfectly clear we're seeing deep flat-bottomed canyons with dune systems of some sort.